要获得与亚马逊 Timestream 类似的功能 LiveAnalytics，可以考虑适用于 InfluxDB 的亚马逊 Timestream。适用于 InfluxDB 的 Amazon Timestream 提供简化的数据摄取和个位数毫秒级的查询响应时间，以实现实时分析。点击[此处](https://docs.aws.amazon.com//timestream/latest/developerguide/timestream-for-influxdb.html)了解更多信息。

本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。

# 创建计划查询
<a name="code-samples.create-scheduledquery"></a>

可使用以下代码段创建具有多度量映射的计划查询。

------
#### [  Java  ]

```
public static String DATABASE_NAME = "devops_sample_application";
public static String TABLE_NAME = "host_metrics_sample_application";
public static String HOSTNAME = "host-24Gju";
public static String SQ_NAME = "daily-sample";
public static String SCHEDULE_EXPRESSION = "cron(0/2 * * * ? *)";

// Find the average, p90, p95, and p99 CPU utilization for a specific EC2 host over the past 2 hours.
public static String QUERY = "SELECT region, az, hostname, BIN(time, 15s) AS binned_timestamp, " +
"ROUND(AVG(cpu_utilization), 2) AS avg_cpu_utilization, " +
"ROUND(APPROX_PERCENTILE(cpu_utilization, 0.9), 2) AS p90_cpu_utilization, " +
"ROUND(APPROX_PERCENTILE(cpu_utilization, 0.95), 2) AS p95_cpu_utilization, " +
"ROUND(APPROX_PERCENTILE(cpu_utilization, 0.99), 2) AS p99_cpu_utilization " +
"FROM " +  DATABASE_NAME + "." +  TABLE_NAME + " " +
"WHERE measure_name = 'metrics' " +
"AND hostname = '" + HOSTNAME + "' " +
"AND time > ago(2h) " +
"GROUP BY region, hostname, az, BIN(time, 15s) " +
"ORDER BY binned_timestamp ASC " +
"LIMIT 5";


public String createScheduledQuery(String topic_arn, 
    String role_arn, 
    String database_name, 
    String table_name) {
    System.out.println("Creating Scheduled Query");

    List<Pair<String, MeasureValueType>> sourceColToMeasureValueTypes = Arrays.asList(
        Pair.of("avg_cpu_utilization", DOUBLE),
        Pair.of("p90_cpu_utilization", DOUBLE),
        Pair.of("p95_cpu_utilization", DOUBLE),
        Pair.of("p99_cpu_utilization", DOUBLE));

    CreateScheduledQueryRequest createScheduledQueryRequest = new CreateScheduledQueryRequest()
            .withName(SQ_NAME)
            .withQueryString(QUERY)
            .withScheduleConfiguration(new ScheduleConfiguration()
                    .withScheduleExpression(SCHEDULE_EXPRESSION))
            .withNotificationConfiguration(new NotificationConfiguration()
                    .withSnsConfiguration(new SnsConfiguration()
                            .withTopicArn(topic_arn)))
            .withTargetConfiguration(new TargetConfiguration().withTimestreamConfiguration(new TimestreamConfiguration()
                    .withDatabaseName(database_name)
                    .withTableName(table_name)
                    .withTimeColumn("binned_timestamp")
                    .withDimensionMappings(Arrays.asList(
                            new DimensionMapping()
                                    .withName("region")
                                    .withDimensionValueType("VARCHAR"),
                            new DimensionMapping()
                                    .withName("az")
                                    .withDimensionValueType("VARCHAR"),
                            new DimensionMapping()
                                    .withName("hostname")
                                    .withDimensionValueType("VARCHAR")
                    ))
                    .withMultiMeasureMappings(new MultiMeasureMappings()
                        .withTargetMultiMeasureName("multi-metrics")
                        .withMultiMeasureAttributeMappings(
                            sourceColToMeasureValueTypes.stream()
                            .map(pair -> new MultiMeasureAttributeMapping()
                                .withMeasureValueType(pair.getValue().name())
                                .withSourceColumn(pair.getKey()))
                            .collect(Collectors.toList())))))
            .withErrorReportConfiguration(new ErrorReportConfiguration()
                    .withS3Configuration(new S3Configuration()
                        .withBucketName(timestreamDependencyHelper.getS3ErrorReportBucketName())))
            .withScheduledQueryExecutionRoleArn(role_arn);

    try {
        final CreateScheduledQueryResult createScheduledQueryResult = queryClient.createScheduledQuery(createScheduledQueryRequest);
        final String scheduledQueryArn = createScheduledQueryResult.getArn();
        System.out.println("Successfully created scheduled query : " + scheduledQueryArn);
        return scheduledQueryArn;
    }
    catch (Exception e) {
        System.out.println("Scheduled Query creation failed: " + e);
        throw e;
    }
}
```

------
#### [  Java v2  ]

```
public static String DATABASE_NAME = "testJavaV2DB";
public static String TABLE_NAME = "testJavaV2Table";
public static String HOSTNAME = "host-24Gju";
public static String SQ_NAME = "daily-sample";
public static String SCHEDULE_EXPRESSION = "cron(0/2 * * * ? *)";

// Find the average, p90, p95, and p99 CPU utilization for a specific EC2 host over the past 2 hours.
public static String VALID_QUERY = "SELECT region, az, hostname, BIN(time, 15s) AS binned_timestamp, " +
"ROUND(AVG(cpu_utilization), 2) AS avg_cpu_utilization, " +
"ROUND(APPROX_PERCENTILE(cpu_utilization, 0.9), 2) AS p90_cpu_utilization, " +
"ROUND(APPROX_PERCENTILE(cpu_utilization, 0.95), 2) AS p95_cpu_utilization, " +
"ROUND(APPROX_PERCENTILE(cpu_utilization, 0.99), 2) AS p99_cpu_utilization " +
"FROM " +  DATABASE_NAME + "." +  TABLE_NAME + " " +
"WHERE measure_name = 'metrics' " +
"AND hostname = '" + HOSTNAME + "' " +
"AND time > ago(2h) " +
"GROUP BY region, hostname, az, BIN(time, 15s) " +
"ORDER BY binned_timestamp ASC " +
"LIMIT 5";


private String createScheduledQueryHelper(String topicArn, String roleArn,
        String s3ErrorReportBucketName, String query, 
        TargetConfiguration targetConfiguration) {
    System.out.println("Creating Scheduled Query");

    CreateScheduledQueryRequest createScheduledQueryRequest = CreateScheduledQueryRequest.builder()
            .name(SQ_NAME)
            .queryString(query)
            .scheduleConfiguration(ScheduleConfiguration.builder()
                    .scheduleExpression(SCHEDULE_EXPRESSION)
                    .build())
            .notificationConfiguration(NotificationConfiguration.builder()
                    .snsConfiguration(SnsConfiguration.builder()
                            .topicArn(topicArn)
                            .build())
                    .build())
            .targetConfiguration(targetConfiguration)
            .errorReportConfiguration(ErrorReportConfiguration.builder()
                    .s3Configuration(S3Configuration.builder()
                            .bucketName(s3ErrorReportBucketName)
                            .objectKeyPrefix(SCHEDULED_QUERY_EXAMPLE)
                            .build())
                    .build())
            .scheduledQueryExecutionRoleArn(roleArn)
            .build();

    try {
        final CreateScheduledQueryResponse response = queryClient.createScheduledQuery(createScheduledQueryRequest);
        final String scheduledQueryArn = response.arn();
        System.out.println("Successfully created scheduled query : " + scheduledQueryArn);
        return scheduledQueryArn;
    }
    catch (Exception e) {
        System.out.println("Scheduled Query creation failed: " + e);
        throw e;
    }
}

public String createScheduledQuery(String topicArn, String roleArn,
        String databaseName, String tableName, String s3ErrorReportBucketName) {
    List<Pair<String, MeasureValueType>> sourceColToMeasureValueTypes = Arrays.asList(
            Pair.of("avg_cpu_utilization", DOUBLE),
            Pair.of("p90_cpu_utilization", DOUBLE),
            Pair.of("p95_cpu_utilization", DOUBLE),
            Pair.of("p99_cpu_utilization", DOUBLE));

    TargetConfiguration targetConfiguration = TargetConfiguration.builder()
            .timestreamConfiguration(TimestreamConfiguration.builder()
            .databaseName(databaseName)
            .tableName(tableName)
            .timeColumn("binned_timestamp")
            .dimensionMappings(Arrays.asList(
                    DimensionMapping.builder()
                            .name("region")
                            .dimensionValueType("VARCHAR")
                            .build(),
                    DimensionMapping.builder()
                            .name("az")
                            .dimensionValueType("VARCHAR")
                            .build(),
                    DimensionMapping.builder()
                            .name("hostname")
                            .dimensionValueType("VARCHAR")
                            .build()
            ))
            .multiMeasureMappings(MultiMeasureMappings.builder()
                    .targetMultiMeasureName("multi-metrics")
                    .multiMeasureAttributeMappings(
                            sourceColToMeasureValueTypes.stream()
                                    .map(pair -> MultiMeasureAttributeMapping.builder()
                                            .measureValueType(pair.getValue().name())
                                            .sourceColumn(pair.getKey())
                                            .build())
                                    .collect(Collectors.toList()))
                    .build())
            .build())
            .build();

    return createScheduledQueryHelper(topicArn, roleArn, s3ErrorReportBucketName, VALID_QUERY, targetConfiguration);
}}
```

------
#### [  Go  ]

```
SQ_ERROR_CONFIGURATION_S3_BUCKET_NAME_PREFIX = "sq-error-configuration-sample-s3-bucket-"
HOSTNAME            = "host-24Gju"
SQ_NAME             = "daily-sample"
SCHEDULE_EXPRESSION = "cron(0/1 * * * ? *)"
QUERY               = "SELECT region, az, hostname, BIN(time, 15s) AS binned_timestamp, " +
    "ROUND(AVG(cpu_utilization), 2) AS avg_cpu_utilization, " +
    "ROUND(APPROX_PERCENTILE(cpu_utilization, 0.9), 2) AS p90_cpu_utilization, " +
    "ROUND(APPROX_PERCENTILE(cpu_utilization, 0.95), 2) AS p95_cpu_utilization, " +
    "ROUND(APPROX_PERCENTILE(cpu_utilization, 0.99), 2) AS p99_cpu_utilization " +
    "FROM %s.%s " +
    "WHERE measure_name = 'metrics' " +
    "AND hostname = '" + HOSTNAME + "' " +
    "AND time > ago(2h) " +
    "GROUP BY region, hostname, az, BIN(time, 15s) " +
    "ORDER BY binned_timestamp ASC " +
    "LIMIT 5"
s3BucketName = utils.SQ_ERROR_CONFIGURATION_S3_BUCKET_NAME_PREFIX + generateRandomStringWithSize(5)

func generateRandomStringWithSize(size int) string {
     rand.Seed(time.Now().UnixNano())
     alphaNumericList := []rune("abcdefghijklmnopqrstuvwxyz0123456789")
     randomPrefix := make([]rune, size)
     for i := range randomPrefix {
         randomPrefix[i] = alphaNumericList[rand.Intn(len(alphaNumericList))]
     }
     return string(randomPrefix)
 }

func (timestreamBuilder TimestreamBuilder) createScheduledQuery(topicArn string, roleArn string, s3ErrorReportBucketName string,
query string, targetConfiguration timestreamquery.TargetConfiguration) (string, error) {

createScheduledQueryInput := &timestreamquery.CreateScheduledQueryInput{
    Name:        aws.String(SQ_NAME),
    QueryString: aws.String(query),
    ScheduleConfiguration: &timestreamquery.ScheduleConfiguration{
        ScheduleExpression: aws.String(SCHEDULE_EXPRESSION),
    },
    NotificationConfiguration: &timestreamquery.NotificationConfiguration{
        SnsConfiguration: &timestreamquery.SnsConfiguration{
            TopicArn: aws.String(topicArn),
        },
    },
    TargetConfiguration: &targetConfiguration,
    ErrorReportConfiguration: &timestreamquery.ErrorReportConfiguration{
        S3Configuration: &timestreamquery.S3Configuration{
            BucketName: aws.String(s3ErrorReportBucketName),
        },
    },
    ScheduledQueryExecutionRoleArn: aws.String(roleArn),
}

createScheduledQueryOutput, err := timestreamBuilder.QuerySvc.CreateScheduledQuery(createScheduledQueryInput)

if err != nil {
    fmt.Printf("Error: %s", err.Error())
} else {
    fmt.Println("createScheduledQueryResult is successful")
    return *createScheduledQueryOutput.Arn, nil
}
return "", err
}

 func (timestreamBuilder TimestreamBuilder) CreateValidScheduledQuery(topicArn string, roleArn string, s3ErrorReportBucketName string,
     sqDatabaseName string, sqTableName string, databaseName string, tableName string) (string, error) {

     targetConfiguration := timestreamquery.TargetConfiguration{
         TimestreamConfiguration: &timestreamquery.TimestreamConfiguration{
             DatabaseName: aws.String(sqDatabaseName),
             TableName:    aws.String(sqTableName),
             TimeColumn:   aws.String("binned_timestamp"),
             DimensionMappings: []*timestreamquery.DimensionMapping{
                 {
                     Name:               aws.String("region"),
                     DimensionValueType: aws.String("VARCHAR"),
                 },
                 {
                     Name:               aws.String("az"),
                     DimensionValueType: aws.String("VARCHAR"),
                 },
                 {
                     Name:               aws.String("hostname"),
                     DimensionValueType: aws.String("VARCHAR"),
                 },
             },
             MultiMeasureMappings: &timestreamquery.MultiMeasureMappings{
                 TargetMultiMeasureName: aws.String("multi-metrics"),
                 MultiMeasureAttributeMappings: []*timestreamquery.MultiMeasureAttributeMapping{
                     {
                         SourceColumn:     aws.String("avg_cpu_utilization"),
                         MeasureValueType: aws.String(timestreamquery.MeasureValueTypeDouble),
                     },
                     {
                         SourceColumn:     aws.String("p90_cpu_utilization"),
                         MeasureValueType: aws.String(timestreamquery.MeasureValueTypeDouble),
                     },
                     {
                         SourceColumn:     aws.String("p95_cpu_utilization"),
                         MeasureValueType: aws.String(timestreamquery.MeasureValueTypeDouble),
                     },
                     {
                         SourceColumn:     aws.String("p99_cpu_utilization"),
                         MeasureValueType: aws.String(timestreamquery.MeasureValueTypeDouble),
                     },
                 },
             },
         },
     }
     return timestreamBuilder.createScheduledQuery(topicArn, roleArn, s3ErrorReportBucketName,
         fmt.Sprintf(QUERY, databaseName, tableName), targetConfiguration)
 }
```

------
#### [  Python  ]

```
HOSTNAME = "host-24Gju"
SQ_NAME = "daily-sample"
ERROR_BUCKET_NAME = "scheduledquerysamplerrorbucket" + ''.join([choice(ascii_lowercase) for _ in range(5)])
QUERY = \
    "SELECT region, az, hostname, BIN(time, 15s) AS binned_timestamp, " \
    "    ROUND(AVG(cpu_utilization), 2) AS avg_cpu_utilization, " \
    "    ROUND(APPROX_PERCENTILE(cpu_utilization, 0.9), 2) AS p90_cpu_utilization, " \
    "    ROUND(APPROX_PERCENTILE(cpu_utilization, 0.95), 2) AS p95_cpu_utilization, " \
    "    ROUND(APPROX_PERCENTILE(cpu_utilization, 0.99), 2) AS p99_cpu_utilization " \
    "FROM " + database_name + "." + table_name + " " \
    "WHERE measure_name = 'metrics' " \
    "AND hostname = '" + self.HOSTNAME + "' " \
    "AND time > ago(2h) " \
    "GROUP BY region, hostname, az, BIN(time, 15s) " \
    "ORDER BY binned_timestamp ASC " \
    "LIMIT 5"

def create_scheduled_query_helper(self, topic_arn, role_arn, query, target_configuration):
    print("\nCreating Scheduled Query")
    schedule_configuration = {
        'ScheduleExpression': 'cron(0/2 * * * ? *)'
    }
    notification_configuration = {
        'SnsConfiguration': {
            'TopicArn': topic_arn
        }
    }
    error_report_configuration = {
        'S3Configuration': {
            'BucketName': ERROR_BUCKET_NAME
        }
    }

    try:
        create_scheduled_query_response = \
            query_client.create_scheduled_query(Name=self.SQ_NAME,
                 QueryString=query,
                 ScheduleConfiguration=schedule_configuration,
                 NotificationConfiguration=notification_configuration,
                 TargetConfiguration=target_configuration,
                 ScheduledQueryExecutionRoleArn=role_arn,
                 ErrorReportConfiguration=error_report_configuration
                 )
        print("Successfully created scheduled query : ", create_scheduled_query_response['Arn'])
        return create_scheduled_query_response['Arn']
    except Exception as err:
        print("Scheduled Query creation failed:", err)
        raise err

def create_valid_scheduled_query(self, topic_arn, role_arn):
    target_configuration = {
        'TimestreamConfiguration': {
            'DatabaseName': self.sq_database_name,
            'TableName': self.sq_table_name,
            'TimeColumn': 'binned_timestamp',
            'DimensionMappings': [
                {'Name': 'region', 'DimensionValueType': 'VARCHAR'},
                {'Name': 'az', 'DimensionValueType': 'VARCHAR'},
                {'Name': 'hostname', 'DimensionValueType': 'VARCHAR'}
            ],
            'MultiMeasureMappings': {
                'TargetMultiMeasureName': 'target_name',
                'MultiMeasureAttributeMappings': [
                    {'SourceColumn': 'avg_cpu_utilization', 'MeasureValueType': 'DOUBLE',
                     'TargetMultiMeasureAttributeName': 'avg_cpu_utilization'},
                    {'SourceColumn': 'p90_cpu_utilization', 'MeasureValueType': 'DOUBLE',
                     'TargetMultiMeasureAttributeName': 'p90_cpu_utilization'},
                    {'SourceColumn': 'p95_cpu_utilization', 'MeasureValueType': 'DOUBLE',
                     'TargetMultiMeasureAttributeName': 'p95_cpu_utilization'},
                    {'SourceColumn': 'p99_cpu_utilization', 'MeasureValueType': 'DOUBLE',
                     'TargetMultiMeasureAttributeName': 'p99_cpu_utilization'},
                ]
            }
        }
    }

    return self.create_scheduled_query_helper(topic_arn, role_arn, QUERY, target_configuration)
```

------
#### [  Node.js  ]

以下代码段使用 AWS SDK for JavaScript V2 风格。该代码段基于示例应用程序，该应用程序位于 [GitHub 上的 Node.js 示例适用于 LiveAnalytics 的 Amazon Timestream 应用程序](https://github.com/awslabs/amazon-timestream-tools/blob/mainline/sample_apps_reinvent2021/js/schedule-query-example.js)。

```
const DATABASE_NAME = 'devops_sample_application';
const TABLE_NAME = 'host_metrics_sample_application';
const SQ_DATABASE_NAME = 'sq_result_database';
const SQ_TABLE_NAME = 'sq_result_table';
const HOSTNAME = "host-24Gju";
const SQ_NAME = "daily-sample";
const SCHEDULE_EXPRESSION = "cron(0/1 * * * ? *)";

// Find the average, p90, p95, and p99 CPU utilization for a specific EC2 host over the past 2 hours.
const VALID_QUERY = "SELECT region, az, hostname, BIN(time, 15s) AS binned_timestamp, " +
    " ROUND(AVG(cpu_utilization), 2) AS avg_cpu_utilization, " +
    " ROUND(APPROX_PERCENTILE(cpu_utilization, 0.9), 2) AS p90_cpu_utilization, " +
    " ROUND(APPROX_PERCENTILE(cpu_utilization, 0.95), 2) AS p95_cpu_utilization, " +
    " ROUND(APPROX_PERCENTILE(cpu_utilization, 0.99), 2) AS p99_cpu_utilization " +
    "FROM " + DATABASE_NAME + "." + TABLE_NAME + " " +
    "WHERE measure_name = 'metrics' " +
    " AND hostname = '" + HOSTNAME + "' " +
    " AND time > ago(2h) " +
    "GROUP BY region, hostname, az, BIN(time, 15s) " +
    "ORDER BY binned_timestamp ASC " +
    "LIMIT 5";

async function createScheduledQuery(topicArn, roleArn, s3ErrorReportBucketName) {
    console.log("Creating Valid Scheduled Query");
    const DimensionMappingList = [{
            'Name': 'region',
            'DimensionValueType': 'VARCHAR'
        },
        {
            'Name': 'az',
            'DimensionValueType': 'VARCHAR'
        },
        {
            'Name': 'hostname',
            'DimensionValueType': 'VARCHAR'
        }
    ];

    const MultiMeasureMappings = {
        TargetMultiMeasureName: "multi-metrics",
        MultiMeasureAttributeMappings: [{
                'SourceColumn': 'avg_cpu_utilization',
                'MeasureValueType': 'DOUBLE'
            },
            {
                'SourceColumn': 'p90_cpu_utilization',
                'MeasureValueType': 'DOUBLE'
            },
            {
                'SourceColumn': 'p95_cpu_utilization',
                'MeasureValueType': 'DOUBLE'
            },
            {
                'SourceColumn': 'p99_cpu_utilization',
                'MeasureValueType': 'DOUBLE'
            },
        ]
    }

    const timestreamConfiguration = {
        DatabaseName: SQ_DATABASE_NAME,
        TableName: SQ_TABLE_NAME,
        TimeColumn: "binned_timestamp",
        DimensionMappings: DimensionMappingList,
        MultiMeasureMappings: MultiMeasureMappings
    }

    const createScheduledQueryRequest = {
        Name: SQ_NAME,
        QueryString: VALID_QUERY,
        ScheduleConfiguration: {
            ScheduleExpression: SCHEDULE_EXPRESSION
        },
        NotificationConfiguration: {
            SnsConfiguration: {
                TopicArn: topicArn
            }
        },
        TargetConfiguration: {
            TimestreamConfiguration: timestreamConfiguration
        },
        ScheduledQueryExecutionRoleArn: roleArn,
        ErrorReportConfiguration: {
            S3Configuration: {
                BucketName: s3ErrorReportBucketName
            }
        }
    };
    try {
        const data = await queryClient.createScheduledQuery(createScheduledQueryRequest).promise();
        console.log("Successfully created scheduled query: " + data.Arn);
        return data.Arn;
    } catch (err) {
        console.log("Scheduled Query creation failed: ", err);
        throw err;
    }
}
```

------
#### [  .NET  ]

```
public const string Hostname = "host-24Gju";
public const string SqName = "timestream-sample";
public const string SqDatabaseName = "sq_result_database";
public const string SqTableName = "sq_result_table";

public const string ErrorConfigurationS3BucketNamePrefix = "error-configuration-sample-s3-bucket-";
public const string ScheduleExpression = "cron(0/2 * * * ? *)";

// Find the average, p90, p95, and p99 CPU utilization for a specific EC2 host over the past 2 hours.
public const string ValidQuery = "SELECT region, az, hostname, BIN(time, 15s) AS binned_timestamp, " +
      "ROUND(AVG(cpu_utilization), 2) AS avg_cpu_utilization, " +
      "ROUND(APPROX_PERCENTILE(cpu_utilization, 0.9), 2) AS p90_cpu_utilization, " +
      "ROUND(APPROX_PERCENTILE(cpu_utilization, 0.95), 2) AS p95_cpu_utilization, " +
      "ROUND(APPROX_PERCENTILE(cpu_utilization, 0.99), 2) AS p99_cpu_utilization " +
      "FROM " + Constants.DATABASE_NAME + "." + Constants.TABLE_NAME + " " +
      "WHERE measure_name = 'metrics' " +
      "AND hostname = '" + Hostname + "' " +
      "AND time > ago(2h) " +
      "GROUP BY region, hostname, az, BIN(time, 15s) " +
      "ORDER BY binned_timestamp ASC " +
      "LIMIT 5";

private async Task<String> CreateValidScheduledQuery(string topicArn, string roleArn,
             string databaseName, string tableName, string s3ErrorReportBucketName)
 {
     List<MultiMeasureAttributeMapping> sourceColToMeasureValueTypes =
         new List<MultiMeasureAttributeMapping>()
         {
             new()
             {
                 SourceColumn = "avg_cpu_utilization",
                 MeasureValueType = MeasureValueType.DOUBLE.Value
             },
             new()
             {
                 SourceColumn = "p90_cpu_utilization",
                 MeasureValueType = MeasureValueType.DOUBLE.Value
             },
             new()
             {
                 SourceColumn = "p95_cpu_utilization",
                 MeasureValueType = MeasureValueType.DOUBLE.Value
             },
             new()
             {
                 SourceColumn = "p99_cpu_utilization",
                 MeasureValueType = MeasureValueType.DOUBLE.Value
             }
         };

     TargetConfiguration targetConfiguration = new TargetConfiguration()
     {
         TimestreamConfiguration = new TimestreamConfiguration()
         {
             DatabaseName = databaseName,
             TableName = tableName,
             TimeColumn = "binned_timestamp",
             DimensionMappings = new List<DimensionMapping>()
             {
                 new()
                 {
                     Name = "region",
                     DimensionValueType = "VARCHAR"
                 },
                 new()
                 {
                     Name = "az",
                     DimensionValueType = "VARCHAR"
                 },
                 new()
                 {
                     Name = "hostname",
                     DimensionValueType = "VARCHAR"
                 }
             },
             MultiMeasureMappings = new MultiMeasureMappings()
             {
                 TargetMultiMeasureName = "multi-metrics",
                 MultiMeasureAttributeMappings = sourceColToMeasureValueTypes
             }
         }
     };
     return await CreateScheduledQuery(topicArn, roleArn, s3ErrorReportBucketName,
         ScheduledQueryConstants.ValidQuery, targetConfiguration);
 }

private async Task<String> CreateScheduledQuery(string topicArn, string roleArn,
             string s3ErrorReportBucketName, string query, TargetConfiguration targetConfiguration)
 {
     try
     {
         Console.WriteLine("Creating Scheduled Query");
         CreateScheduledQueryResponse response = await _amazonTimestreamQuery.CreateScheduledQueryAsync(
             new CreateScheduledQueryRequest()
             {
                 Name = ScheduledQueryConstants.SqName,
                 QueryString = query,
                 ScheduleConfiguration = new ScheduleConfiguration()
                 {
                     ScheduleExpression = ScheduledQueryConstants.ScheduleExpression
                 },
                 NotificationConfiguration = new NotificationConfiguration()
                 {
                     SnsConfiguration = new SnsConfiguration()
                     {
                         TopicArn = topicArn
                     }
                 },
                 TargetConfiguration = targetConfiguration,
                 ErrorReportConfiguration = new ErrorReportConfiguration()
                 {
                     S3Configuration = new S3Configuration()
                     {
                         BucketName = s3ErrorReportBucketName
                     }
                 },
                 ScheduledQueryExecutionRoleArn = roleArn
             });
         Console.WriteLine($"Successfully created scheduled query : {response.Arn}");
         return response.Arn;
     }
     catch (Exception e)
     {
         Console.WriteLine($"Scheduled Query creation failed: {e}");
         throw;
     }
 }
```

------